Author: wudejian

So far this morning, the most valuable order has come from an injection molding factory that’s back to purchase high-toughness LG mold steel.  Although he’s a frequent repeat customer, I still get a little excited every time I see an order from him.  I’m impressed by how often he places orders, the large order amounts,…

Mr. Yu asked which die steel material would be more wear-resistant for the cutting edge and punch when processing titanium alloy, with a material thickness of 0.3 mm.  I asked him in return, “What die steel are you currently using, and what problems have you encountered?”  He said he is currently using SKH-9, but the cutting edge wears down…

Even though I haven’t been in touch with many people for years, they still think of me when they run into problems with their molds.  Last night on my way home from work, Mr. Liu, who makes stainless steel hinges, came to see me. He said his punching pins were wearing out too quickly and…

What type of die steel is used for copper die casting? Current copper die casting molds have a short service life, and die casting factories now stock Heat resistant steel 8433.  Copper die casting molds operate at high temperatures, making the die steel prone to annealing; therefore, a die steel with excellent heat resistance must…

A customer who had purchased my PM30 high-speed steel powder praised it, saying, “Your material is excellent.”  I replied, “Your trust is both a blessing and a responsibility, so I must do everything in my power to deliver quality work and not let you down.”  Actually, I wanted to add, “Once trust collapses, everything is…

Mr. Hong, I’m using 40Cr and SKH55 high-speed steel punch rods for cold extrusion. The rods, with a hardness of 63–65 HRC, tend to break. I’ve had some last for over 600 cycles, while others break after just 5,000 cycles—the results are inconsistent. When I switch to LD die steel with a hardness of 60 HRC, the…

Seeing the seven pieces of SKH51 high-speed steel and DC53 hard steel ordered by a new customer in the workshop, and recalling the conversations I had with two customers yesterday and today, I’ve become increasingly convinced that what mold steel users want isn’t just a low price, but high-quality, reliable mold steel with consistent performance.  The…

 A long-established Hong Kong-owned factory has placed another order with Yuhui for 17 pieces of 8566 anti-cracking steel.  I used to visit this Hong Kong-owned factory to solicit business when I was working for another company, but their tool steel supplier were all top global brands like ASSAB and Datong Special Steel. The company I worked…

When selecting stamping die steel, many people worry that the steel’s hardness is too low and its wear resistance insufficient. Even though the primary cause of die failure is chipping, they still worry that low-hardness die steel lacks sufficient wear resistance. This is worrying about wear resistance when they shouldn’t be, while neglecting the toughness they…

 A remark from a long-time customer made me realize that only by conducting business with integrity and a positive mindset can we earn our customers’ trust and secure their orders.  Today, a long-time customer came to purchase my 8566 anti-cracking steel. He told me that the 8566 his friend bought elsewhere was subpar—the price was…

 What type of die steel is used for hot-forged nuts? Hot-forging die manufacturers all use Yuhui 8566 die steel. We just purchased another 10 pieces. Our client specializes in hot-forged nuts. Since nuts are standard parts produced in large quantities, they require high thermal wear resistance and heat resistance. Previously, they used tungsten carbide dies.…